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(emit_ldst): For large offsets use register index 

instead of immediate.

From-SVN: r3484
This commit is contained in:
John Hassey 1993-02-18 03:05:08 +00:00
parent abc1d3f177
commit 7f8f7371d3
1 changed files with 16 additions and 1 deletions
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17
gcc/config/m88k/m88k.c
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@ -2127,7 +2127,22 @@ emit_ldst (store_p, regno, mode, offset)
int offset;
{
rtx reg = gen_rtx (REG, mode, regno);
rtx mem = gen_rtx (MEM, mode, plus_constant (stack_pointer_rtx, offset));
rtx mem;
if (SMALL_INTVAL (offset))
{
mem = gen_rtx (MEM, mode, plus_constant (stack_pointer_rtx, offset));
}
else
{
/* offset is too large for immediate index must use register */
rtx disp = gen_rtx (CONST_INT, VOIDmode, offset);
rtx temp = gen_rtx (REG, SImode, TEMP_REGNUM);
rtx regi = gen_rtx (PLUS, SImode, stack_pointer_rtx, temp);
emit_move_insn (temp, disp);
mem = gen_rtx (MEM, mode, regi);
}
if (store_p)
emit_move_insn (mem, reg);